This is a paragraph with a class of 'one', and should be green and underlined.

This is a paragraph with a class of 'one step forward', and should NOT be green (but purple instead), nor should it be underlined.

This is a paragraph with a class of 'two steps back', and should be olive and overlined.

This is a paragraph with a class of 'one two three', and should be olive and overlined.

This is a paragraph with a class of 'world war two', and should be olive and overlined.

This is a paragraph with a class of 'three-blind-mice', and should be green and underlined.

This is a paragraph with a class of 'bakers-three', and should NOT be green (but purple instead), nor should it be underlined.

This is a paragraph with a class of 'give me liberty', and should be green. If it is red, then it has inappropriately matched a rule which contains the classes 'give' and 'generously'; if it is black, it has not matched any attribute selector rules. If it is purple, it has matched the attribute selector [class] but not any of the value-related selectors.

This is a paragraph with a LANG of 'en', and should be green.

This is a paragraph with a LANG of 'en-au', and should be green, mate.

This is a paragraph with a LANG of 'de-test', and should be green, ja?